CVE-2022-40621
Last modified
CVE-2022-40621 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Because the WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 and earlier communicates over HTTP and not HTTPS, and because the hashing mechanism does not rely on a server-supplied key, it is possible for an attacker with sufficient network access to capture the hashed password of a logged on user and use it in a classic Pass-the-Hash style attack.. EPSS estimates a 0.69% chance of exploitation in the next 30 days.
Description
Because the WAVLINK Quantum D4G (WN531G3) running firmware version M31G3.V5030.200325 and earlier communicates over HTTP and not HTTPS, and because the hashing mechanism does not rely on a server-supplied key, it is possible for an attacker with sufficient network access to capture the hashed password of a logged on user and use it in a classic Pass-the-Hash style attack.
Metrics
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wavlink | Wn531g3 Firmware | <= m31g3.v5030.200325 |
References
- https://www.malbytes.net/2022/07/wavlink-quantum-d4g-zero-day-part-01.htmlExploit, Third Party Advisory
- https://www.malbytes.net/2022/07/wavlink-quantum-d4g-zero-day-part-01.htmlExploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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